The transfer of pollen from the anther of a flower to the stigma of different flower is known as

The transfer of pollen from the anther of a flower to the stigma of a different flower is known as Cross pollination.
Cross-pollination is the process of applying pollen from one flower to the pistils of another flower.
Pollination occurs in nature with the help of insects and wind. This process can also be done by hand to produce offspring with desired traits, such as colour or pest resistance.